Catherine Blatner, Invictus CrossFit coach and professional CrossFit competitor, speaks to participants the importance of core strength during the LifeFit Tour exercise demonstration March 21, 2017, at Yokota Air Base Japan. Blatner has been coaching CrossFit since 2011, and has been part of the prestigious Invictus CrossFit coaching team since 2014, and holds multiple CrossFit coaching certification.

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Keywords: 374th, air, airlift, america, archive, armed, army, base, crossfit, defence, force, forces, japan, lifefit, military, navy, reportage, service, serviceman, servicemen, soldier, states, tour, united, usa, wing, yokota